Induction of bone formation in rat tail vertebrae by mechanical loading.

We have developed an experimental model in which pins, inserted into the seventh and ninth caudal vertebrae of 13-week-old rats, are used to load the eighth caudal vertebra in compression. Four groups of animals were used in the study: unpinned; animals with pins inserted, but non-loaded; animals loaded once, for 360 cycles at 0.5 Hz; and animals subjected… CONTINUE READING